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The TTR250 FAQ web pages -> TTR250 -> For Sale -> Anyone recognise these jets? NOW FOR SALE!
Post Info TOPIC: Anyone recognise these jets? NOW FOR SALE!
TTRfan


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Anyone recognise these jets? NOW FOR SALE!
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48 pilot and 137-5 main jets 1.jpg

48 pilot and 137-5 main jets 2.jpg

I just took these out of a carb that I put back to UK (blue) standard 147/50 jetting.

The pilot jet is a 48 measuring 18mm long and 5mm wide - I am pretty sure its a standard Tekei/Yamaha part. It's too short for a Mikuni. 

The main jet is a 137.5 measuring 9mm long and 6mm wide. It looks like a Tekei (see here) as the ring around it meets the bottom of the screwdriver slot but only Mikuni seem to list a 137.5 - see here. Not sure what the RD stands for confuse

Anyone recognise them?

Brian

 



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TT-R250M


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RE: Anyone recognise these jets?
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The #48 is definatly a standard Yamaha jet for the older metal tank models.

Not sure about the main but it does seem to be a Mikuni but your guess is as good as mine as to what the ''RD'' stands for



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Matt G


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EBC RD Precision Mikuni-Style Slot Head (SJ Prefix) Main Jet - 137.5
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Does this help? RD stands for Racing Designs.

http://www.shopping.com/ebc-ebc-rd-precision-mikuni-style-slot-head-sj-prefix-main-jet-137-5-sj13754-sj13754/info

EBC RD Precision Mikuni-Style Slot Head (SJ Prefix) Main Jet - 137.5 SJ13754 SJ13754

RD PRECISION MAIN JETS

http://www.motofanat.com/snow/12047/160/9840018.php

 

 

 



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TTRfan


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RE: Anyone recognise these jets?
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Wow - an excellent bit of sleuthing Matt - many thanks indeed!

I am unlikely to use them but that's another bit of TTR "knowledge" to add to the memory banks!

Anyone need a #137.5 Racing Designs Mikuni-copy main jet? No sensible offer refused wink

Brian



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TT-R250M


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RE: Anyone recognize these jets?
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That sure does help & the pic is big enough to see why it's a so called racing design. It has a tapered orifice.



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TTRfan


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RE: Anyone recognise these jets?
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£5 for both including UK p&p - anyone interested?

Brian



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TTRfan


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FREE! RD 137.5 jet
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Still got the RD 137.5 here if anyone can make use of it?

Will send to a UK address for cost of p&p only - £1

Brian



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